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BR9908831A - Circuit for detecting the timing of a plurality of data bits within an asynchronous data stream, process for processing an asynchronous data stream, and system for detecting the speed of an asynchronous data stream - Google Patents

Circuit for detecting the timing of a plurality of data bits within an asynchronous data stream, process for processing an asynchronous data stream, and system for detecting the speed of an asynchronous data stream

Info

Publication number
BR9908831A
BR9908831A BR9908831-2A BR9908831A BR9908831A BR 9908831 A BR9908831 A BR 9908831A BR 9908831 A BR9908831 A BR 9908831A BR 9908831 A BR9908831 A BR 9908831A
Authority
BR
Brazil
Prior art keywords
data stream
asynchronous data
detecting
data
asynchronous
Prior art date
Application number
BR9908831-2A
Other languages
Portuguese (pt)
Inventor
Jack S Petty
Kevin Mccauley
William Sorce
David Quinn
Original Assignee
Ericsson Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Inc filed Critical Ericsson Inc
Publication of BR9908831A publication Critical patent/BR9908831A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0262—Arrangements for detecting the data rate of an incoming signal
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/382—Information transfer, e.g. on bus using universal interface adapter
    • G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Communication Control (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Information Transfer Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

"CIRCUITO PARA DETECTAR A TEMPORIZAçãO DE UMA PLURALIDADE DE BITS DE DADOS DENTRO DE UM FLUXO DE DADOS ASSìNCRONO, PROCESSO PARA PROCESSAR UM FLUXO DE DADOS ASSìNCRONO, E, SISTEMA PARA DETECTAR A VELOCIDADE DE UM FLUXO DE DADOS ASSìNCRONO". A velocidade de comunicação serial assíncrona é detectada determinando uma duração de um bit de dados dentro de um fluxo de dados assíncronos. A duração do bit de dados é usada para gerar uma freq³ência de cronometragem. A freq³ência de cronometragem é usada para referir em tempo dados do fluxo de dados assíncronos em um registro. Os dados cronometrados são processados de acordo com uma indicação de erro."CIRCUIT TO DETECT THE TIMING OF A DATA BIT PLURALITY INSIDE AN ASYNC DRAIN DATA FLOW, PROCESS TO PROCESS AN ASYNC DRAIN FLOW, AND, SYSTEM TO DETECT THE DATA FLOW OF ASYNC DRAIN". The speed of asynchronous serial communication is detected by determining the duration of a data bit within an asynchronous data stream. The duration of the data bit is used to generate a timing frequency. The timing frequency is used to refer to asynchronous data stream data in a record in time. The timed data is processed according to an error indication.

BR9908831-2A 1998-03-16 1999-02-09 Circuit for detecting the timing of a plurality of data bits within an asynchronous data stream, process for processing an asynchronous data stream, and system for detecting the speed of an asynchronous data stream BR9908831A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/039,876 US6157689A (en) 1998-03-16 1998-03-16 Automatic speed detection for asynchronous serial communications
PCT/US1999/002706 WO1999048244A2 (en) 1998-03-16 1999-02-09 Automatic speed detection for asynchronous serial communications

Publications (1)

Publication Number Publication Date
BR9908831A true BR9908831A (en) 2000-11-21

Family

ID=21907807

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9908831-2A BR9908831A (en) 1998-03-16 1999-02-09 Circuit for detecting the timing of a plurality of data bits within an asynchronous data stream, process for processing an asynchronous data stream, and system for detecting the speed of an asynchronous data stream

Country Status (8)

Country Link
US (1) US6157689A (en)
EP (1) EP1070410B1 (en)
CN (1) CN1293852A (en)
AU (1) AU2663999A (en)
BR (1) BR9908831A (en)
DE (1) DE69917624T2 (en)
EE (1) EE200000542A (en)
WO (1) WO1999048244A2 (en)

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JP3565730B2 (en) * 1999-01-13 2004-09-15 株式会社リコー AT command analyzer
US6687232B1 (en) * 2000-01-14 2004-02-03 Adtran, Inc. Subscriber loop terminal equipment-resident mechanism for determining bit rate of high-level data link control communication channel
DE60024404T2 (en) 2000-02-02 2006-08-03 Telefonaktiebolaget Lm Ericsson (Publ) Method and device for predistorting a digital signal
US6850561B1 (en) * 2000-03-21 2005-02-01 Advanced Micro Devices, Inc. Predictable updating of a baud divisor of an asynchronous serial port during data reception
US7017056B1 (en) 2000-07-31 2006-03-21 Hewlett-Packard Development Company, L.P. Method and apparatus for secure remote control of power-on state for computers
US6944248B2 (en) * 2001-05-17 2005-09-13 Bluebrook Associates Llc Data rate calibration for asynchronous serial communications
US7043560B2 (en) * 2001-06-19 2006-05-09 Nokia, Inc. Dynamic probing and reporting of bit rate information
WO2004036820A2 (en) * 2002-10-18 2004-04-29 Koninklijke Philips Electronics N.V. Data processing apparatus that processes incoming bits
CN100392605C (en) * 2002-12-03 2008-06-04 Adc长途电讯有限公司 Measuring Error Rates in Communication Links
US7333536B2 (en) * 2003-10-09 2008-02-19 Stmicroelectronics Pvt. Ltd. System and method for auto baud rate detection in asynchronous serial communication
GB0414793D0 (en) 2004-07-01 2004-08-04 Ttp Communications Ltd Determining characteristics of communications signals
US7904631B2 (en) * 2006-11-02 2011-03-08 Honeywell International Inc. Protocol independent bridge
CN101645752B (en) * 2008-08-08 2013-01-09 鸿富锦精密工业（深圳）有限公司 Automatic detection system and automatic detection method of communication protocol
JP5351301B2 (en) * 2012-03-19 2013-11-27 ファナック株式会社 Numerical control system that measures time by IO unit
CN103001734B (en) * 2012-10-17 2015-05-06 海军工程大学 Method for automatically detecting asynchronous serial port communication protocol on basis of level sampling
CN104360974A (en) * 2014-10-29 2015-02-18 上海伽利略导航有限公司 Method and device for automatically adjusting Baud rate of universal asynchronous receiver/transmitter (UART)
CN105871655B (en) * 2016-03-24 2019-03-29 哈尔滨工业大学 A Baud Rate Estimation IP Core System Applied to Serial Bus Analysis Instruments
US10153892B2 (en) * 2016-07-15 2018-12-11 New Jersey Institute Of Technology Asynchronous wireless sensing
KR20190091929A (en) * 2018-01-30 2019-08-07 엘에스산전 주식회사 Method for Automatic Switching Communication Speed of UART
CN110275851B (en) * 2019-07-19 2020-02-07 广州波视信息科技股份有限公司 Data serial-parallel conversion device, delayer and data processing method
US20220061008A1 (en) * 2020-08-21 2022-02-24 Advanced Energy Industries, Inc. Uart transmissions with two start bits for automatic baud detection and reduced clock skew
CN113922924B (en) * 2021-10-08 2024-08-09 中国兵器装备集团自动化研究所有限公司 Absolute encoder communication method and system based on spi
CN118316573A (en) * 2024-04-23 2024-07-09 深圳市广和通无线股份有限公司 Communication baud rate adaptation method, module, device and readable storage medium

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US3689846A (en) * 1971-03-30 1972-09-05 Burroughs Corp Start bit detection circuit
US4586189A (en) * 1984-02-16 1986-04-29 Itt Corporation Asynchronous to synchronous data interface
JPH0748779B2 (en) * 1987-09-01 1995-05-24 株式会社村田製作所 Modem device
KR900005313A (en) * 1988-09-14 1990-04-14 존 지.웨브 Method and device for implementing bytewidth UART transmission on a 16-bit data bus
US5140679A (en) * 1988-09-14 1992-08-18 National Semiconductor Corporation Universal asynchronous receiver/transmitter
US5008902A (en) * 1989-01-25 1991-04-16 International Business Machines Corp. Automatic baud rate detection
US5072407A (en) * 1990-01-08 1991-12-10 Gandalf Technologies, Inc. Serial data rate detection method and apparatus
JPH04167738A (en) * 1990-10-31 1992-06-15 Nec Corp Detector for start-stop synchronous communication speed
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US5627858A (en) * 1992-07-20 1997-05-06 Telefonaktiebolaget L M Ericsson Multi-channel autobauding circuit
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US5654983A (en) * 1994-06-10 1997-08-05 Hayes Microcomputer Products, Inc. Method and apparatus of operating data communications equipment in command mode and autobauding
US5649122A (en) * 1994-06-24 1997-07-15 Startech Semiconductor, Inc. Universal asynchronous receiver/transmitter with programmable xon/xoff characters

Also Published As

Publication number Publication date
EP1070410B1 (en) 2004-05-26
AU2663999A (en) 1999-10-11
WO1999048244A2 (en) 1999-09-23
EE200000542A (en) 2002-04-15
WO1999048244A3 (en) 1999-11-04
US6157689A (en) 2000-12-05
CN1293852A (en) 2001-05-02
DE69917624D1 (en) 2004-07-01
EP1070410A2 (en) 2001-01-24
DE69917624T2 (en) 2004-09-30

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 8A,9A E 10A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 1990 DE 25/02/2009.